CN201025585Y - Low smoke no halogen combustion retarding cable - Google Patents
Low smoke no halogen combustion retarding cable Download PDFInfo
- Publication number
- CN201025585Y CN201025585Y CNU2007200349893U CN200720034989U CN201025585Y CN 201025585 Y CN201025585 Y CN 201025585Y CN U2007200349893 U CNU2007200349893 U CN U2007200349893U CN 200720034989 U CN200720034989 U CN 200720034989U CN 201025585 Y CN201025585 Y CN 201025585Y
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Abstract
Disclosed is a non-halogen low-smoke flame retardant cable, comprising a protective jacket and a shielding line resistance which is sleeved therein. The shielding line resistance comprises an insulation wire core. At least one shielding line resistance is arranged in the protective jacket and at least two insulation wire cores are arranged in the shielding line resistance. The shielding line resistance is further provided with a winding belt which is wrapped around the insulation wire core. A line resistance shielding layer is arranged outside the winding belt and a line resistance winding layer is arranged outside the line resistance shielding layer. A flame retardant layer, a cable winding layer and a cable shielding layer are arranged outside the shielding line resistance in the protective jacket in turn. The utility model has advantages of high insulating resistance constant, high insulating mechanical performance and high flame retardant performance, which can meet the strict technical requirement of the aerospace, nuclear industry and subway departments and is easy for mass production.
Description
Technical field
The utility model relates to a kind of cable, and particularly a kind of have the higher fire resistance and a cable of radiation-resistant property.
Background technology:
Insulated wire cores in the cable, common structure and manufacturing process are directly insulating material to be extruded on the conductor wire core with extruder, thereby reach the purpose of insulation, insulation layer structure is an individual layer.The insulation of this structure, shielding, mechanical performance, can not satisfy the following specification requirement that industries such as space flight and aviation, skyscraper, subway, tunnel, nuclear industry propose the single insulated wire cores of cable with special cable:
1, when 90 ℃ of specified or maximum operating temperatures, be 60 years the normal useful life of cable;
2, high flame resistance: the single insulated wire cores vertical combustion of IEC 60332-1 requirement;
3, high-mechanical property: tensile strength 〉=9.0MPa before aging, elongation at break 〉=200%; After 135 ± 3 ℃, 240h are aging, tensile strength and elongation at break rate of change≤± 25%;
4, minimum insulation resistance constant 3670M Ω .km 20 ℃ the time, minimum insulation resistance constant 36.7M Ω .km in the time of 60 ℃, minimum insulation resistance constant 3.67M Ω .km in the time of 90 ℃;
5, insulation should be satisfied the low smoke and zero halogen requirement, satisfies IEC 61034, IEC 60754-1, IEC 60754-2 requirement.
Summary of the invention
The purpose of this utility model is the above-mentioned shortcoming at prior art, and a kind of low-smoke halogen-free inflaming-retarding cable that improves insulation layer structure is provided.
The technical scheme that realizes the utility model above-mentioned purpose is: low-smoke halogen-free inflaming-retarding cable, comprise a sheath, be with the shielding conductor resistance in the sheath, the shielding conductor resistance includes insulated wire cores, it is characterized in that: have a shielding conductor resistance in the sheath at least, have at least two to thoroughly do away with the edge core in the shielding conductor resistance, the shielding conductor resistance also has twining package tape outside insulated wire cores, twining package tape also is provided with wired resistance screen outward, and line resistance screen is outside equipped with line resistance lapping layer; Be disposed with flame-retardant layer, cable lapping layer and cable shield outside the shielding conductor resistance in sheath.
Described insulated wire cores has a conductor, and conductor sets gradually inner insulating layer and external insulation layer outward.
Be provided with the filling bed of material between resistance of sheath inner shield line and flame-retardant layer.
Shielding conductor resistance according to aforementioned schemes has two at least, has at least two to thoroughly do away with the edge core in the every shielding conductor resistance.
Further, described shielding conductor resistance has four, wherein has two to thoroughly do away with the edge core in two shielding conductor resistances, has three to thoroughly do away with the edge core in two shielding conductor resistances.
The utility model is the special purpose cable, and cable mainly partly is made up of insulating barrier, screen, restrictive coating etc., is characterized in that shielding conductor resistance, the insulated wire cores in the cable has sandwich construction outward.Insulated wire cores has the insulating barrier of double-layer structure, and internal layer is that electric property reaches the not insulating barrier made of the insulating material of Halogen of special cable specification requirement, outerly reaches the flame-retardant layer that the material of special cable specification requirement is made by the low-smoke non-halogen flame-retardant performance; And the shielding conductor resistance also has screen; Between sheath and shielding conductor resistance also is sandwich construction; Sheath material also adopts the halogen-free low-smoke flame retardant material of high-mechanical property.Therefore of the present utility model have a following advantage: (1) uses existing commercially available material to make, and needn't develop the new flame-retardant insulating material that can satisfy specific (special) requirements; (2) have insulation resistance constant height, insulation mechanical performance height, the fire resistance advantages of higher can satisfy the specification requirement of the strictnesses that department proposed such as space flight and aviation, nuclear industry, subway; (3) can utilize production and the checkout equipment that has general cable factory now, carry out rational technological design, be easy to produce in enormous quantities.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of insulated wire cores among Fig. 1;
Among the figure, 1 is insulated wire cores, and 2 are the shielding conductor resistance, and 3 is sheath, and 11 is conductor, 12 is inner insulating layer, and 13 is external insulation layer, and 21 is twining package tape, and 22 are line resistance screen, and 23 are line resistance lapping layer, 31 is flame-retardant layer, and 32 is the cable lapping layer, and 33 is cable shield, and 4 for filling the bed of material.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model.
Low-smoke halogen-free inflaming-retarding cable comprises a sheath 3, is with four shielding conductor resistances 2 in the sheath 3, wherein has two to thoroughly do away with edge core 1 in two shielding conductor resistances 2, has three to thoroughly do away with edge core 1 in two shielding conductor resistances 2 in addition.Twining package tape 21 also is provided with wired resistance screen 22 outside the twining package tape 21 outside insulated wire cores 1, line resistance screen 22 is outside equipped with line resistance lapping layer 23; Be disposed with flame-retardant layer 31, cable lapping layer 32 and cable shield 33 outside the shielding conductor resistance 2 in sheath 3.Insulated wire cores 1 has a conductor 11, conductor 11 outer inner insulating layer 12 and the external insulation layers 13 of setting gradually.Be provided with the filling bed of material 4 in resistance 2 of sheath 3 inner shield lines and 31 of flame-retardant layers.
The material requirements that it is pointed out that the relevant structure of this cable is as follows:
1, inner insulating layer 12, external insulation layer 13: the graininess insulating material (crosslinked polyethylene, cross-linked polyolefin etc.) that meets following technical conditions:
Specific insulation: 20 ℃, 〉=1 * 10
16Ω .cm;
High-mechanical property: tensile strength 〉=9.0MPa before aging, elongation at break 〉=200%; After 135 ± 3 ℃, 240h are aging, tensile strength and elongation at break rate of change≤± 25%;
Insulation should be satisfied the low smoke and zero halogen requirement, satisfies IEC 61034, IEC 60754-1, IEC 60754-2 requirement.
Inside and outside insulating layer material is by the gradation of extruder or once extrude, and is wrapped on the conductor wire core (conductor 11), makes insulated wire cores.Should carry out crosslinkedly after interior external insulation layer is extruded, ectonexine thickness reasonably makes up to guarantee that the cable insulation core meets the technical requirement of special cable defined.
2, twining package tape/lapping layer: be to be undertaken wrapped by the non-hygroscopic belt.
3, screen: comprise two kinds of wrapped shielding of metal compound belt and metal wire knitted shieldings.
4, flame-retardant layer: the low-smoke halide-free fireproof composite polyolefine material of high flame retardant is extruded or wrapped two kinds of the low-smoke non-halogen flame-retardant band of high flame retardant.
5, sheath: the graininess sheath material (cross-linked polyolefin or polyolefin etc.) that meets following technical conditions extrudes the formula insulating material as sheath:
High-mechanical property: tensile strength 〉=9.0MPa before aging, elongation at break 〉=200%; After 110 ± 2 ℃ of thermoplasticity, 240h wear out, 120 ± 2 ℃ of thermosettings, 240h aging back tensile strength and elongation at break rate of change≤± 25%.
Sheath should satisfy the low smoke and zero halogen requirement, satisfies IEC 61034, IEC 60754-1, IEC 60754-2 requirement.
Claims (5)
1. low-smoke halogen-free inflaming-retarding cable, comprise a sheath, be with the shielding conductor resistance in the sheath, the shielding conductor resistance includes insulated wire cores, it is characterized in that: have a shielding conductor resistance in the sheath at least, have at least two to thoroughly do away with the edge core in the shielding conductor resistance, the shielding conductor resistance also has twining package tape outside insulated wire cores, twining package tape also is provided with wired resistance screen outward, and line resistance screen is outside equipped with line resistance lapping layer; Be disposed with flame-retardant layer, cable lapping layer and cable shield outside the shielding conductor resistance in sheath.
2. low-smoke halogen-free inflaming-retarding cable according to claim 1 is characterized in that: described insulated wire cores has a conductor, and conductor sets gradually inner insulating layer and external insulation layer outward.
3. low-smoke halogen-free inflaming-retarding cable according to claim 1 is characterized in that: be provided with the filling bed of material between resistance of sheath inner shield line and flame-retardant layer.
4. according to claim 1 or 2 or 3 described low-smoke halogen-free inflaming-retarding cables, it is characterized in that: described shielding conductor resistance has two at least, has at least two to thoroughly do away with the edge core in the every shielding conductor resistance.
5. low-smoke halogen-free inflaming-retarding cable according to claim 4 is characterized in that: described shielding conductor resistance has four, wherein has two to thoroughly do away with the edge core in two shielding conductor resistances, has three to thoroughly do away with the edge core in two shielding conductor resistances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200349893U CN201025585Y (en) | 2007-03-06 | 2007-03-06 | Low smoke no halogen combustion retarding cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200349893U CN201025585Y (en) | 2007-03-06 | 2007-03-06 | Low smoke no halogen combustion retarding cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201025585Y true CN201025585Y (en) | 2008-02-20 |
Family
ID=39099443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200349893U Expired - Lifetime CN201025585Y (en) | 2007-03-06 | 2007-03-06 | Low smoke no halogen combustion retarding cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201025585Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700434A (en) * | 2012-06-29 | 2014-04-02 | 江苏亨通线缆科技有限公司 | Digital transmission flexible cable for security signal system |
| CN105788721A (en) * | 2016-03-07 | 2016-07-20 | 江苏泰祥电线电缆有限公司 | Instrument cable for reinforcement shielding ship |
| CN105957631A (en) * | 2016-06-30 | 2016-09-21 | 安徽埃克森科技集团有限公司 | Flexible cable and preparation method therefor |
-
2007
- 2007-03-06 CN CNU2007200349893U patent/CN201025585Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700434A (en) * | 2012-06-29 | 2014-04-02 | 江苏亨通线缆科技有限公司 | Digital transmission flexible cable for security signal system |
| CN103700434B (en) * | 2012-06-29 | 2016-06-01 | 江苏亨通线缆科技有限公司 | For the flame-retardant flexible electric cable of rail traffic signal system |
| CN105788721A (en) * | 2016-03-07 | 2016-07-20 | 江苏泰祥电线电缆有限公司 | Instrument cable for reinforcement shielding ship |
| CN105957631A (en) * | 2016-06-30 | 2016-09-21 | 安徽埃克森科技集团有限公司 | Flexible cable and preparation method therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHANGZHOU BAYI CABLE CO., LTD. Free format text: FORMER NAME: ZHENGZHOU BAYI CABLE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 213031, No. 18, science Avenue, Xinbei Electronic Science and Technology Industrial Park, Jiangsu, Changzhou Patentee after: Changzhou Bayi Cable Co., Ltd. Address before: 213031, No. 18, science Avenue, Xinbei Electronic Science and Technology Industrial Park, Jiangsu, Changzhou Patentee before: Zhengzhou Bayi Cable Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080220 |